Database reliability
Fix recurring performance, backup, recovery, security, and job failures in production systems.
How we scope it →Senior database engineering
Fix slow databases. Plan safe migrations.
Marquie Data Systems handles performance, reliability, and complex migrations for SQL Server, MySQL, PostgreSQL, and cloud data platforms.
Direct delivery by Peter Marquie. Written scope and acceptance criteria before work begins.
Or browse the free SQL Server tools hub — wait stats, blocking chains, deadlocks, missing indexes, backup RTO/RPO, and a health-score card. No email required.
- 25 years
- Production database experience
- 4,000+
- SQL Servers migrated in one program
- $1.2M
- Annual licensing savings delivered
Career highlights from employed and consulting roles. Details and references are available during scoping.
What we handle
Three related practices, each assessed and delivered by the same senior practitioner.
Modernization & migration
Move platforms with dependencies mapped, outputs compared, cutovers rehearsed, and rollback preserved.
How we scope it →Reporting & data automation
Replace fragile reports and recurring manual work with tested data pipelines and reviewable automation.
How we scope it →Defined ways to start
Choose the problem that matches yours. The Health Check Lite starts at $1,500; every other fee is quoted in writing after a scoping call.
- Database Health Check Starting at $1,500
- Performance Tuning Sprint 2–4 weeks · fixed fee
- Migration to Cloud Scoped project · fixed fee
- AI-Ready Data Access 2–4 weeks · fixed fee
- Opportunity Validation Sprint 2–4 weeks · fixed scope
- AI Content Operations Platform Project + optional managed ops
Plus an ongoing DBA retainer that pairs with any of the engagements above — a senior DBA on call without a full-time hire.
Recent work
All case studies →AI-accelerated SQL Server → MySQL modernization
A 300-plus-item reporting estate moving through dependency mapping, controlled rewrites, and row-level parity tests.
Read →End-to-end SQL infrastructure management
A multi-environment SQL Server estate standardized across builds, refreshes, job health, performance, and recovery.
Read →Deal-sourcing signal engine — validated before it was built
Live-source tests disproved the original premise, prevented a premature build, and narrowed the idea to a testable market window.
Read →Who we work with
Local businesses
Restaurants, garages, dental offices, contractors, and retailers with a line-of-business database, recurring data exports, or reporting no one owns end to end. The Health Check Lite is the fixed-price starting point, or use the free self-assessment.
Based in Ossining, NY — serving Westchester and the lower Hudson Valley: Briarcliff Manor, Croton-on-Hudson, Sleepy Hollow, Tarrytown, Pleasantville, Chappaqua, Yorktown Heights.
Mid-market operators
Teams where slow reports, fragile pipelines, failed recoveries, or downtime affect revenue and customers. We bring senior DBA depth to the platforms already in production, including work performed under SOC 2, PCI DSS, and SOX controls. See how these engagements run.
Remote, anywhere in the U.S.
Growth projects
See growth projects →Alongside the database practice we take on a focused set of remote, fixed-fee growth projects — customer reactivation, review sentiment, loyalty, vendor and COGS tracking — built from data you already collect.